A bacteria culture doubles in size every hour. If the culture starts with 5 bacteria, how many will there be after 'x' hours?
Understanding and Graphing Exponential Growth in Real Life

Quiz
•
English, Mathematics
•
8th Grade
•
Hard
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5 * x
10 * (2^x)
5 * (2^x)
5 + (2^x)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A tree grows at a rate of 3% per year. If the tree is currently 10 feet tall, what will its height be after 'x' years?
10 * (1.05^x)
10 + (3 * x)
10 * (2^x)
10 * (1.03^x)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A certain investment grows exponentially. If you invest $100 at an unknown annual interest rate, how much will it be worth after 'x' years if it reaches $400?
The investment will be worth $300 after x years.
The investment will be worth $200 after x years.
The investment will be worth $400 after x years.
The investment will be worth $500 after x years.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A population of rabbits increases by 50% every month. If there are currently 20 rabbits, how many will there be after 'x' months?
20 * (1.2^x)
20 * (1.5^x)
20 * (2^x)
20 + (20 * 0.5 * x)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car's value decreases by 20% each year. If the car is currently worth $15,000, what will its value be after 'x' years?
15000 * (1.2^x)
15000 - (2000 * x)
15000 / (0.8^x)
15000 * (0.8^x)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A viral video gets 200 views on the first day and doubles its views each subsequent day. How many views will it have after 'x' days?
200 * (x^2)
200 * (2^x)
200 + (2^x)
100 * (2^x)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A certain species of fish in a lake grows exponentially. If there are currently 50 fish and the population doubles every year, how many fish will there be after 'x' years?
50 * 2^x
50 + 2x
100 * 2^x
50 * x^2
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